Question

Find the number of terms in each of the following:
(i) 2 + 4 + 6 +8+ ... = 10100
(ii) - 1.0-1.5 - 2.0 -2.5 - ... = -27
(iii) - 1 +1/4+ 3/2+ ... = 3969
(iv) (x + y) + (x - y) + (x - 3y) + .... = 22 (x - 20y).
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Answer 1

Answer: on using equation an=a+(n-1)d

1)3367 terms

2)33 terms